On 19 Oct 2015, at 13:31, Timo Sirainen <t...@iki.fi> wrote:
>
> On 17 Oct 2015, at 12:41, Timo Sirainen <t...@iki.fi> wrote:
>>
>>> Connect postfix@localhost on postfix
>>> 134 Query SELECT bytes FROM quota2 WHERE username =
>>> 'u...@mydomain.lan'
>>> 135 Query SELECT bytes FROM quota2 WHERE username =
>>> 'u...@mydomain.lan'
>>> 135 Query BEGIN
>>> 135 Query UPDATE quota2 SET
>>> bytes=bytes+2570,messages=messages+1 WHERE username = 'u...@mydomain.lan'
>>
>> Here's it's updating quota with u...@mydomain.lan
>>
>>> 140 Query SELECT messages FROM quota2 WHERE username =
>>> 'mydomain.lan'
>>> 140 Query BEGIN
>>> 140 Query DELETE FROM domain WHERE domain = 'mydomain.lan'
>>> 140 Query DELETE FROM quota2 WHERE username = 'mydomain.lan'
>>> 140 Query INSERT INTO domain (quota,domain) VALUES
>>> ('8581','mydomain.lan') ON DUPLICATE KEY UPDATE quota='8581'
>>> 151004 15:18:45 140 Quit
>>
>> Here it's only mydomain.lan. So something's not right.
>
> After seeing your configs, this makes more sense now, although it's a bit
> confusing. You're updating quota bytes to "domain" table, but quota messages
> to "quota2" table where both domain and user quotas are mixed.
This is pretty much the issue here. The current code works exactly as it
should, so I think the old code was buggy.. So what's happening with domain
quota is:
- priv/quota/storage maps to domain.quota field
- priv/quota/messages maps to quota2.messages field
The domain table has all the domains, so updating it has worked fine. But
apparently there were no domain entries in quota2 table? And apparently the old
Dovecot code was simply ignoring this and never writing anything in there? So
that would be a bug. When either the storage or the messages don't exist,
Dovecot does a quota recalculation and writes the resulting recalculated
fields. This recalculation does a DELETE + INSERT internally.
So there are 2 things you could do now..:
1) If you manually INSERT all the missing domains to quota table, the existing
code continues to work. Because the domains exist there, there's no need for
Dovecot to do a quota recalculation and DELETE anything.
2) This has never been 100% safe though. There has always been the possibility
of quota recalculation deleting the domain. I've now added a "no-unset"
parameter to dict:
quota = dict:domain_quota:%d:no-unset:proxy::sqldomainquota
This disables the DELETEs completely. However quota recalculation still
attempts to do:
INSERT INTO domain (quota,domain) VALUES ('5404','postdomain.lan') ON DUPLICATE
KEY UPDATE quota='5404'
Which fails in your case, because MySQL wants the INSERT to be valid as well.
You can kludge around it by changing MySQL schema with:
alter table domain alter description set default '';
alter table domain alter transport set default 'dovecot';
Now quota recalculation works as well. Except of course domain quota
recalculation doesn't actually work correctly, because it calculates only the
single user's quota and places it to the domain quota.
